Aeronatical Groung Lighting (AGL)

Question 1

In the UK, which regulatory document should we refer to confirm runway AGL serviceability level requirements?

Answer 1

CAP1168

Question 2

A number of approaches at LHR have missing lights or non-standard spacing due to their interference with the ILS systems or physical obstructions. These are registered as what?

Answer 2

Special Conditions (SC’s)

Question 3

What does SALS stand for?

Answer 3

Supplementary Approach Lights System

Question 4

PAPI is part of the runway approach light, True or False?

Answer 4

True

Question 5

When do SALS argument the runway approach lighting?

Answer 5

In Low Visibility Operations (LVOs)

Question 6

Runway AGL always indicates the declared runway distances, True or False?

Answer 6

False

Question 7

How far apart are runway centreline light fittings spaced?

Answer 7

15 meters

Question 8

What do Touchdown Zone barrettes consist of?

Answer 8

15 rows of 4 barrettes

Question 9

To meet LVO criteria, what is the maximum straight taxiway centreline lights spacing?

Answer 9

15 meters

Question 10

At what intervals are Touchdown Zone barrettes spaded longitudinally?

Answer 10

60 meters

Question 11

To meet LVO criteria, what is the maximum spacing of curved taxiway centreline lights?

Answer 11

7.5 meters

Question 12

For a taxiway intended for use in IRVR of less than 550 meters, to remain compliant, how many adjacent centreline fittings cannot be unserviceable?

Answer 12

2 or more

Question 13

How often does LHR require to perform MALMS test?

Answer 13

Monthly

Question 14

What does MALMS stand for?

Answer 14

Mobile Airfield Lighting Monitoring System

Question 15

What does IRVR stand for?

Answer 15

???

Question 16

When the runway centreline lightening changes in colour from alternate red and white to continuous red lights, how far from the end of the runway are you?

Answer 16

300 meters

Question 17

Which runway AGL (at full brilliancy) does MALMS test involve checking?

Answer 17

Centreline, Runway Edge and TDZ

Question 18

RETILs consist of how many light fittings?

Answer 18

6

Question 20

The AGL within the runway touchdown zone (TDZ) extends to what distance longitudinally along the runway?

Answer 20

900 meters

Question 21

What does RETIL stand for?

Answer 21

Rapid Exit Taxiway Indicator Light

Question 22

Wing-bar AGL consists of how many light fittings?

Answer 22

4

Question 23

Runway edge lights are spaced how far apart?

Answer 23

60 meters

Question 24

Where are the runway edge lights located?

Answer 24

Outside the runway side strip marking

Question 25

How many meters outside of the runway side stripe marking is the nearest PAPI unit?

Answer 25

15 meters